The whole point is that languages like Java won't keep track of what's "shared" or "mutable" for you. And no, it doesn't just trip up "very junior developers in code review", quite the opposite. It typically comes up as surprising cross-module interactions in evolving code bases, that no "code review" process can feasibly catch.
Speak for yourself. I haven't seen any bug like this in Java for years. You think you know better and my experience is not valid? Ha. Ok. Keep living in your dreams.
